Effects of different temperature regimens on the development of Aedes aegypti (L.) (Diptera: Culicidae) mosquitoes

Mohammed, Azad; Chadee, Dave D.

doi:10.1016/j.actatropica.2011.04.004

Cited by 168 publications

(157 citation statements)

References 21 publications

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“…We assumed larval survival under "normal" environments to be p 1 =0.500 based on field observations (Walsh et al 2011;Wijeyaratne et al 1974), an estimate that tends to be smaller than laboratory based estimations (Bar-Zeev 1958b; Barbosa et al 1972;Headlee 1940;Headlee 1941;Koenraadt et al 2010;Tun-Lin et al 2000). We further assumed that for "hot" environments larval survival was halved, as observed in the laboratory for Ae aegypti (Bar-Zeev 1958a;Mohammed & Chadee 2011;Rueda et al 1990;Tun-Lin et al 2000) and for other culicinae mosquitoes under field conditions (Chaves et al 2011). Thus, for the "hot" environment we assumed larval survival to be p 2 =0.250.…”

Section: Parametersmentioning

confidence: 99%

“…aegypti (Bar-Zeev 1958a;Mohammed & Chadee 2011), as well as other mosquitoes (Chaves et al 2011). These observations imply that a series of compensatory or overcompensatory changes in life history traits (e.g., fecundity compensating changes in survival) could be expected if mosquito life history is governed by fitness trade-offs (Stearns 2000).…”

Section: Hot Environments and Mosquito Outbreaksmentioning

confidence: 99%

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Hot temperatures can force delayed mosquito outbreaks via sequential changes in Aedes aegypti demographic parameters in autocorrelated environments

et al. 2014

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Aedes aegypti L. (Diptera: Culicidae) is a common pantropical urban mosquito, vector of dengue, Yellow Fever and chikungunya viruses. Studies have shown Ae. aegypti abundance to be associated with environmental fluctuations, revealing patterns such as the occurrence of delayed mosquito outbreaks, i.e., sudden extraordinary increases in mosquito abundance, following transient extreme high temperatures. Here, we use a two-stage (larvae and adults) matrix model to propose a mechanism for environmental signal canalization into demographic parameters of Ae. aegypti that could explain delayed high temperature induced mosquito outbreaks. We performed model simulations using parameters estimated from a weekly time series from Thailand, assuming either independent or autocorrelated environments. For autocorrelated environments, we found that long delays in the association between the onset of "hot" environments and mosquito outbreaks (10 weeks, as observed in Thailand) can be generated when "hot" environments sequentially trigger a larval survival decrease and over-compensatory fecundity increase, which lasts for the whole "hot" period, in conjunction with a larval survival increase followed by a fecundity decrease when the environment returns to "normal". This result was not observed for independent environments. Finally, we discuss our results implications for prospective entomological research and vector management under changing environments.

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Section: Parametersmentioning

confidence: 99%

Section: Hot Environments and Mosquito Outbreaksmentioning

confidence: 99%

Hot temperatures can force delayed mosquito outbreaks via sequential changes in Aedes aegypti demographic parameters in autocorrelated environments

et al. 2014

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“…4 The theoretical causal mechanisms linking ENSO to dengue are based on the connections between ENSO and local climate anomalies in certain regions of the world and the influence of climate on the dengue mosquito vector and virus. Precipitation can influence the availability of mosquito larval habitat, [5][6][7] and ambient temperatures influence rates of mosquito larval development, [8][9][10][11] adult biting activity, 12 the gonotrophic cycle, 13 and viral replication in the mosquito (extrinsic incubation period). 14,15 However, the influence of ENSO and local climate on dengue transmission is debated in the literature, with previous studies reporting inconsistent interannual associations.…”

Section: Introductionmentioning

confidence: 99%

Climate and Non-Climate Drivers of Dengue Epidemics in Southern Coastal Ecuador

Stewart-Ibarra¹,

Lowe²

2013

The American Society of Tropical Medicine and Hygiene

140

162

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Abstract. We report a statistical mixed model for assessing the importance of climate and non-climate drivers of interannual variability in dengue fever in southern coastal Ecuador. Local climate data and Pacific sea surface temperatures (Oceanic Niñ o Index [ONI]) were used to predict dengue standardized morbidity ratios (SMRs;1995-2010. Unobserved confounding factors were accounted for using non-structured yearly random effects. We found that ONI, rainfall, and minimum temperature were positively associated with dengue, with more cases of dengue during El Niñ o events. We assessed the influence of non-climatic factors on dengue SMR using a subset of data (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010) and found that the percent of households with Aedes aegypti immatures was also a significant predictor. Our results indicate that monitoring the climate and non-climate drivers identified in this study could provide some predictive lead for forecasting dengue epidemics, showing the potential to develop a dengue early-warning system in this region.

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“…Therefore, changes in environmental temperatures in the direction consistent with global warming trends may be expected to exacerbate the emergence or resurgence of a number of vector-borne diseases, such as malaria and dengue (8,10,11). The effect of the expected increase in temperature on the A. aegypti mosquito is of particular concern with regard to the transmission of dengue (11)(12)(13). It is expected that with increased temperatures, smaller mosquitoes, which feed more frequently, will be produced; the geographic range of the mosquitoes will expand; and the extrinsic incubation period of the virus will be shortened (11,13).…”

mentioning

confidence: 99%

Impact of environmental temperatures on resistance to organophosphate insecticides in Aedes aegypti from Trinidad

Polson¹,

Brogdon²,

Rawlins³

et al. 2012

Rev Panam Salud Publica

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Effects of different temperature regimens on the development of Aedes aegypti (L.) (Diptera: Culicidae) mosquitoes

Cited by 168 publications

References 21 publications

Hot temperatures can force delayed mosquito outbreaks via sequential changes in Aedes aegypti demographic parameters in autocorrelated environments

Hot temperatures can force delayed mosquito outbreaks via sequential changes in Aedes aegypti demographic parameters in autocorrelated environments

Climate and Non-Climate Drivers of Dengue Epidemics in Southern Coastal Ecuador

Impact of environmental temperatures on resistance to organophosphate insecticides in Aedes aegypti from Trinidad

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